Electrical phonograph attachment for wired radioreceivers



Feb. 4, 1930.- f QW OUGH 1,745,621

" ELECTRICAL PHONOGRAPH ATTACHMENT FOR WIRED RADIO RECEIVERS Filed Fb. is, 1928 I C/lh? WHO?? list-fl r j Patented Feb. 4, 1930 CLINTON W. HOUG-lH, OF BOONVILLE, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS,

TO FEDERAL TELEGRAPH COMPANY, A CORPORATION OF CALIFORNIA ELECTRICAL rnonocnarn ATTACHMENT FOR WIRED. RADIORECEIVERS Application filed February 16, 1928. Serial No. 254,874.

My invention relates broadly to wired radio receiving apparatus and more particularly to a phonograph attachment for wired radio receivmg apparatus. Oneof the objects of my invention is to provide a construction of attachment for a wired-radio receiver whereby the audio frequency amplification circuits of the wired radio receiver may be utilized in connection with a phonograph pick-up for operation of the loud speaker reproducer normally actuated by the wired radio receiving apparatus.

Another object of my invention is to provide a construction of attachment for a wired radio receiver cabinet which attachment may be readily mounted upon or removed from the top of the wired radio receiver cabinet and connections automatically established with the audio frequency amplification circuits. Still another object of my invention is to provide an electric phonograph attachment for a wired radio receiver wherein the parts of theelectric phonograph are mounted within a housing which may be readily adapted to the top of a wired radio receiver cabinet utilizing the audio frequency amplification circuit of the wired'radio receiver tor amphfication of energy picked up by the phonograph p ck-up device, enabling such energy I to be -reproduced through the same loud speaker normally employed for the wired radio receiver. I

Other and further objects of my invention .reside in the construction and arrangement of parts for the phonograph attachment for a wired radio receiver, as set forth more clearly in thespecification hereinafter following by drawings in top of the attachment swung back to enable the parts to be viewed.

Referring to the drawings in more detail, reference character 1 designates the cabinetwhich houses the wired radio receiving apparatus. The loud speaker is disposed behind the grill work 2 in the wired radio re ceiver, and suitable controls 3 and 4 extend from the front of the wired radio cabinet. The top of the wired radio received cabinet designated at 5 is provided with insulated bushings 6 through which metal bushings 7 extend terminating in spring arms 8. The electric phonographic attachment is housed within the enclosureconstituted by side walls 9 and base 10. The base 10 carries turn-table 11 mounted upon pivot 12. The turn-table 11 forms a support for a phonograph record 14 which is driven by rotation of the turntable 11 through the friction drive 15 operated from motor 16. A standard 17 is mounted upon the base 10 and carries arm 18 pivthe spring arms 8 at the ends thereof. and establish wiping contact therewith. The sleeves 7 connect through conductors represented at 27 and'28 with the audio frequency amplification apparatus within the To facilitate.

wired radio receiver cabinet 1. the centering of the attachment 9 upon the wired radio receiver I may provide centering pins represented at 30 adjacent each corner of the attachment, which pins may project into the top of the wired radio receiver cabinet for securing the attachment in position plied at the choice of the subscriber to the wired radio servlc'e who may be furnished with the wired radio receiver 1. The assembly of the. electric phonograph attachment upon the wired radio receiver is entirely optlonal with the wired radio subscriber.

When it is desired to reproduce sound rec- .7 ords by means of the phonograph pick-up device the cabinet housing this pick-up device, being separate from the radio receiving set is superimposed upon the set. The rod members which project from the cabinet are caused v.t'o contact with the sleeve members whichare providediin the radio receiving set cabinet.-

Connections between the radioreceiving. set and the wlre'd' radio distr butlon circuit are interrupted by removing a wall plug from the wall outlet, ,such as is commonly employed in wired radio distribution circuits, and the phonograph pick-up device together with the audio frequency amplifier maybe used for reproductionof sound records. When the apparatus is to be used for the reception of wired radio signals the phonograph pick-up device is removed from the radio receiver and the plug is inserted into the wall outlet or receptacle. The equipment is then ready for use a a wired radio recei rig set, v r

While I have descri bed our invention in one of its preferred embodiments, I desire it to be understood that modifications may be made andthat no limitations upon my invention are intended other than are imposed by the scope of the appended claims.

What I claim as new and desire to secure by Letters Patent of the United States is as follows: v

1. Anielectric phonograph attachment for wired radio receivers comprising a casing arranged to be mounted upon the top of awired radio receiver cabinet, phonograph mechanism carried by said casing including an electrical pick-up device and a pair of protruding prongs connected'to said pick-up device and mounted on said casing insertable into said wired radio receiver cabinet for establishing connection with the input circuit of the audio frequency amplifier of said wired radio "receiver within said cabinet.

tion a wired radio receiver,;a cabinet for said receiver, socket memberscarried by said cabthe phonograph mechanism within said casing and the amplification circuits within said A wired radio receiver cabinet. I

3. An electric phonograph attachment for wired radio receivers comprising a wired radioreceiver cabinet, a pair ofsoclret members positioned at the top of said wired radio receiver cabinet, amplification circuits within said=wired radio receiver cabinet connected with said socket members, an electric phonograph pick-up apparatus, a casing including said electric phonograph pick-up apparatus and having a pair of downwardly projecting prongs on the base thereof located in position to engage 'thesocket members at the top of said wired radio receiver .cabinet for establishing electrical connection between the electric phonograph pick-up apparatus and the amplification circuits in said wired radioreceiver cabinet.

4. An electric phonograph attachment for wired radio receivers comprising a wired radio receiver, cabinet having amplification circuits therein, separate socket members mounted at vthe top of said wired radio receiver cabinet, one of said socket members being disposed adjacent one end of said wired radio receiver cabinet and the other of said socket members being disposed adjacent the opposite end of said wired radio receiver cabinet,

a casing substantially conforming in contour with the shape of said wired radio receiver cabinet, electric phonograph mechanism carried within said casing, and a pair of down:

mechanism in said casing and the amplification circuits in said wired radio receiver cabinet.

In testimony whereof I alfix my signature.

CLINTON W. HOUGI-L.

inet, said wired radio receiver comprising an 7 audio vfrequency amplifier, the input circuit of said amplifier being connected with said socket members, a Casing including electric phonograph mechanism and se 's'tantially corresponding in contour to the'shape of said wired radio receiver cabinet, pins extending from said casing and engageable with said 

